Platform dumping-car



(N Model.) 3 sheets-sheet 1.

s. WEBBBR. 'PLATFORM DUMPING GAR.

No. 552,799. Patented Jan, 7, 1896.

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uw Model.) l 3 sheets-sheet 2.

S. WEBBER.

PLATFORM DUMPING GAR. No. 552,799. vPatented Jan. '7, 1L896.

, C CID IK I3 ATTORNEYS.

ANDREW BAGIMMMA PHOTO-LITHQWASHINGTDNJS.

34 Sheets-Sheet 3.

QNo Model.)

S WEBBBR PLATFORM DUMPING GAR.

Patented Jan. '7, 1896.

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Nirnn STATES PATENT OFFICE.

SCOTT VEBBER, OF PIGEON COVE, MASSACHUSETTS.

PLATFORM DUMPlNG-CAR.

SPECIFICATION forming part of Letters Patent No. 552,799, dated January 7, 1896.

Application filed October 2, 1895.

To all whom t may concern.-

Be it known that I, SCOTT VVEBBER, of Pigeon Cove, in the county of Essex and State of Massachusetts, have invented a new and Improved Platform Dumping-Oar, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved platform dumpingcar which is simple and durable in construction, very effective in operation, more especially designed for dumping heavy material,such as stone blocks, and arranged to insure a dumping of the load a suitable distance from one side of the track.

The invention consists principally of a platform mounted to rock transversely, and movable blocks for normally supporting opposite sides'of the platform.

The invention also consists of certain parts and details and combinations of the same, as will be fully described hereinafter and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure lis a side elevation of the improvement. Fig. 2 is an enlarged transverse section of the same on the line 2 2 of Fig. 5, and with the platform in a dumping position. Fig. 3 is an end 'view of the improvement with the platform in a normal position. Fig. el is a cross-section of the same. Fig. 5 is a sectional side elevation of the same on the line 5 5 of Fig. 6. Fig. 6 is a sectional plan view of the same. Fig. 7 is a plan view of the bolster, and Fig. 8 is a sectional side elevation of the same.

The improved platform dumping-car is' provided with a continuous vdraw-bar A, extend ing over the front and rear trucks B and B', and carrying at their ends the draw-heads A and A2 for connecting the dumping-car with other cars or the locomotive in a train. The

draw-bar A is provided at each truck B and at its under side with a bolster C, formed at its middle with a downwardly-extending pivot C', engaging a correspondingly-shaped socket in a plate C2, attached to the cross-timber B2 of the truck B or B.

On the top of the draw-bar A, and in align- Serial No. 564,412. (No model.)

ment with the cross-timber B2, is arranged a plate D made U -shaped and forming the apex for a rocker-bed having the `two side arms D and D2 resting on the top of the crosstimber B2, said side arms D' and D2 being beveled downward and outward, as is plainly illustrated in Figs. 2 and 4. Thel rocker-bed thus constructed is adapted to be engaged by corresponding sides of a rocker E made shaped, and having an apex plate E engaging with its apex the apex of the plate D for the rocker-bed previously mentioned.

The two rockers E over the two trucks B and B support a platform F adapted to carry the load, and preferably trussed, as illustrated in the drawings. Normally the plat form F extends in a horizontal position, as illustrated in Figs. 3 and 1l, with the apices of the plates D and E in contact with each other and with blocks G and G interposed between the corresponding sides of the rocker E and the side arms D2 and Dsof the rockerbed. (See Fig. 4.)

The blocks G and G are fitted to slide longitudinally on bearn gs or guideways D3 and D4, respectively, projecting from the sides D and D2, respectively, as plainly illustrated in the drawings. The blocks G on one side of the car are connected by rods I-I with a lever H2, fulcrumed at its middle at I-l3 on the drawbar A, as plainly shown in Fig. l, and similar rods I-I connect with a corresponding lever II2 on the opposite side of the car.

The two levers I-I2 are pivotally connected by links I and I with arms I2 and I2, respectjively, fulcrumed on a fender B3 erected on the forward end of the front truck B, as plainly shown in Figs. 1, 3,\and 5. connect with the pivots of the links I and I Links Il and I5 and with the arms I2 and I2, respectively, and the said links I4 and I5 are engaged by chains Ii and I7 fitted in the fender B2, and adapted to be taken hold of by the operator to pull the said chains and cause a swinging of the levers I-I in the direction of the arrow a', to pull the blocks G or G from under the rockers E and permit the platform F to rock either to the right or to the left, according to which set of blocks G or G is moved from under the rock-` ers. Instead of the pull-chains I6 and I2, bars I8 and I9, respectively, may be employed, said bars being connected with the links I5 and I6,

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respectively, and fitted to slide in bearings in the fender B3. (See Figs. 1, 23, and 5.)

Now it will be seen that by the arrangement described the platform F is held normally in a horizontal position as long as the two sets of blocks G and G' are interposed between the rockers E and the rocker-beds. \Vhenever it is desired to dump the load, say to the left of the car, then the operator manipulates either the pull-chain I5 or the bar 18 to cause the blocks G to slide inwardly toward each other on their guideways D3, thereby moving the said blocks from under the arm D of the corresponding arm of the rocker E, to permit the platform F to swing with its left side downward until the side of the rocker rests on the top of the arm D', as is plainly shown in Fig. 2. The platform F in moving into this inclined position causes a dumping of the load, the latter being delivered a suitable distance from one side of the track, and consequently is not liable to injure the car or the track. In a similar manner when it is desired to dump the load to the right of the track the operator pulls the other chain I7 or bar I" to move the blocks G from under the right-hand side of the rockers E and arms D2 to move the platform so as to swing downward at its righthand side until the right-hand ends of the rockers E rest on the top of the arms D2. The load now slides off' the platform to the right at one side of the track.

In order to move the platform back to a normal horizontal position after the load is dumped, I provide the following device: A chain J is fastened with its ends to eyes F' and F2 on opposite sides of the platform F, the said chain then extending from the said eyes downward and under pulleys J and J 2, supported on the rear portion of the front truck B. The chain then extends upwardly to wind on a shaft J 3 j ournaled in suitable bearings on the under side of the platform F, the front end of the' shaft extending beyond the fender B3, to carry at its end a hand-wheel J 4 under the control of the operator. Now when the platform is in a dumping position, as illustrated, for instance, in Fig. 2, and it is desired to move the platform back to its normal horizontal position, the operator turns the hand-wheel J 'L from the right to the left, to cause the right-hand end of the chain J to wind up on the shaft J 3, while the left-hand end unwinds from the said shaft. The right hand end of the chain in doing so causes a downward pull on the uppermost side of the platform F, to cause a swinging of the platform with the apex of the plates D and E as the fulcrum until the rightdiand sides of the rockers E again rest on the blocks G'. lVhen this position is reached, the operator by pushing down the bars lS causes a return movement of the lever 1I2 to move the blocks G back in position between the arms D an d the corresponding side of the rockers E. When the platform Fis in an opposite dumping positiou and it is desired to return the platform to its normal position, then the hand-wheel J "l is turned in an opposite direction to cause a backward swinging of the platform until its normal position is reached. rlhe operator then pushes the bar I9 downward to cause a return movement of the blocks G', the latter then passing between the arms D2 of the righthand ends of the rockers E.

In order to securely hold the rockers in position on the rocker-beds, l provide each of the plates E' at its apex with a downwardlyextending lug E2 engaging a corresponding opening in the apex of the plate D, as plainly illustrated in Fig. 5. A longitudinal displacement of the rockers Eis presented by segmental rubbing-plates K and K', secured on the top and bottom of the draw-bar A, and engaging opposite sides of the rockers, rockerbeds and cross-timber B2, as plainly indicated in Fig. 5.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patentl. A platform dumping car, comprising two trucks, a draw bar having swivel connection with each of said trucks, a rocker bed supported on each of the trucks, rockers on the platform en gaging on said rocker beds, blocks normally engaged between the rockers and their beds, at each side, mechanism for moving the blocks of each side longitudinally of the car and toward each other, and rubbing plates secured to the top and bottom of the draw bar and engaging the opposite sides of the rockers and rocker beds to prevent a displacement of the rockers longitudinally of the car, substantially as specified.

2. A platform dumping car, comprising a platform, trucks upon which the same is mounted, rockers on the platform, the rocker plates on the rockers, the rocker beds on the trucks, the rocker bed plates thereon, blocks for supporting the platform parallel with the transverse direction of the trucks, a shaft supported by and extended longitudinally of the platform, a hand wheel on the outer end of said shaft, chains extended from ,said shaft under pulleys at the opposite sides of a truck and to an engagement with opposite sides of the platform, and the rubbing plates to prevent a longitudinal displacement of the rockers, substantially as specified.

SCOTT WEBBER. lVitnesses:

ROBERT C. MoKENzrE, JOHN C. PRINCE.

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